---
title: NSDetailedErrorsKey
framework: coredata
role: symbol
role_heading: Global Variable
path: coredata/nsdetailederrorskey
---

# NSDetailedErrorsKey

If multiple validation errors occur in one operation, they are collected in an array and added with this key to the “top-level error” of the operation.

## Declaration

```swift
let NSDetailedErrorsKey: String
```

## See Also

### User Info Dictionary Keys

- [NSAffectedObjectsErrorKey](coredata/nsaffectedobjectserrorkey.md)
- [NSAffectedStoresErrorKey](coredata/nsaffectedstoreserrorkey.md)
- [NSDeletedObjectIDsKey](coredata/nsdeletedobjectidskey.md)
- [NSInsertedObjectIDsKey](coredata/nsinsertedobjectidskey.md)
- [NSInvalidatedObjectIDsKey](coredata/nsinvalidatedobjectidskey.md)
- [NSPersistentHistoryTokenKey](coredata/nspersistenthistorytokenkey.md)
- [NSPersistentStoreURLKey](coredata/nspersistentstoreurlkey.md)
- [NSRefreshedObjectIDsKey](coredata/nsrefreshedobjectidskey.md)
- [NSUpdatedObjectIDsKey](coredata/nsupdatedobjectidskey.md)